Kyle was a Top 25 American baby boy name between 1986 and 1998
Kurtis surged into the Top 400 American baby boy names in the 1980s, but fell off the list by 2004.
Kurt peaked at No. 109 in 1964 in the Top 1000 American baby boy names. It was off the list by 2006
Saint Corbinian was originally named Waldegiso after his father, but his mother, Corbiniana renamed her son after herself following her husband’s death
Kofi was one of five 4-letter names given to 33 American baby boys in 2013. The other four were Kavi, Kobi, Kohl and Kush.
English speakers often associate Klaus with Santa Claus; however, it is pronounced “klowse”
In the USA, Killian reached No. 955 with 20 recorded male births in 1995. By 2011, it was No. 264 with 1376 recorded births
Kiefer entered the USA Top 1000 most popular boys names in 1990 at No. 885, rose to No. 709 in 1991, then fell off the list